"This study examines whether wage disclosure assists employers in suppressing wages. Economic theories suggest that wage disclosure might facilitate wage coordination among employers by aiding coordination and monitoring for deviations, especially in highly concentrated labor markets. Using the U.S. Department of Labor's public disclosure of wage information as a natural experiment, I find that disclosure contributes to wage suppression in these highly concentrated markets. Additionally, a policy change to real-time disclosure of Labor Condition Applications (LCAs) reveals further wage suppression."